<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <title>{:sysconf('app_name')} {:sysconf('app_version')}</title>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <link href="{:sysconf('site_icon')}" rel="shortcut icon">
    <meta name="viewport" content="width=device-width, initial-scale=0">
    <link href="__ROOT__/static/plugs/uploader/webuploader.css" rel="stylesheet" type="text/css"/>
    <link href="__ROOT__/static/plugs/uploader/theme/uploader.css" rel="stylesheet" type="text/css"/>
    <script src="__ROOT__/static/plugs/jquery/jquery.min.js"></script>
    <script src="__ROOT__/static/plugs/uploader/webuploader.min.js"></script>
    <script src="__ROOT__/static/plugs/uploader/theme/upload.js"></script>
</head>
<body>
<div id="uploader">
    <div class="queueList">
        <div id="dndArea" class="placeholder">
            <div id="filePicker"></div>
        </div>
    </div>
    <div class="statusBar" style="display:none;">
        <div class="progress">
            <span class="text">0%</span>
            <span class="percentage"></span>
        </div>
        <div class="info"></div>
        <div class="btns">
            {if $mode!=='one'}
            <div id="filePicker2"></div>
            {/if}
            <div class="uploadBtn">开始上传</div>
        </div>
    </div>
</div>
<script>
    /* global WebUploader */

    /**
     * 每个文件上传成功调用
     * @type Function
     */
    function uploaded(ret, file) {
        var url = ret.url || ret.site_url;
        $('#' + file.id).attr('data-md5', file.md5).attr('data-src', url);
        /*{if $mode === 'one'}*/
        top.$('[name="{$field}"]').map(function () {
            top.$(this).attr('data-srcs', ret.url).attr('data-md5', file.md5).val(url).trigger('change');
        });
        top.layer.close(top.layer.getFrameIndex(window.name));
        /*{/if}*/
    }

    var isSuccessState = false;

    function completed() {
        var btnHTML = '完成上传';
        $('.uploadBtn').html(btnHTML).on('click', successSelected);

        function successSelected() {
            if (!isSuccessState && this.innerHTML === btnHTML) {
                isSuccessState = true;
                var srcs = [], md5s = [];
                $('[data-md5] .success').map(function () {
                    var $li = $(this).parents('[data-md5]');
                    md5s.push($li.attr('data-md5'));
                    srcs.push($li.attr('data-src'));
                });
                if (srcs.length < 1) return top.$.msg.tips('还没有选择文件,请勾选需要使用的文件！');
                top.$('[name="{$field}"]').map(function () {
                    top.$(this).attr('data-srcs', srcs.join('|')).attr('data-md5', md5s.join('|')).val(srcs.join('|')).trigger('change');
                });
                top.layer.close(top.layer.getFrameIndex(window.name));
            }
        }
    }

    // 当domReady的时候开始初始化
    $(function () {
        var uploader;
        var $wrap = $('#uploader');
        /* 文件容器 */
        var $queue = $('<ul class="filelist"></ul>').appendTo($wrap.find('.queueList'));
        /* 状态栏，包括进度和控制按钮 */
        var $statusBar = $wrap.find('.statusBar');
        /* 文件总体选择信息。 */
        var $info = $statusBar.find('.info');
        /* 上传按钮 */
        var $upload = $wrap.find('.uploadBtn');
        /* 没选择文件之前的内容。*/
        var $placeHolder = $wrap.find('.placeholder');
        var $progress = $statusBar.find('.progress').hide();
        /* 添加的文件数量 */
        var fileCount = 0;
        /* 添加的文件总大小 */
        var fileSize = 0;
        /* 优化retina, 在retina下这个值是2 */
        var ratio = window.devicePixelRatio || 1;
        /* 缩略图大小 */
        var thumbnailWidth = 110 * ratio;
        var thumbnailHeight = 110 * ratio;
        /* 可能有pedding, ready, uploading, confirm, done */
        var state = "pedding";
        /* 所有文件的进度信息，key为file id */
        var percentages = {};
        /* 判断浏览器是否支持文件的base64 */
        var isSupportBase64 = (function () {
            var data = new Image(), support = true;
            data.onload = data.onerror = function () {
                if (parseInt(this.width) !== 1 || parseInt(this.height) !== 1) support = false;
            };
            data.src = "";
            return support;
        }.call(this));
        /* 检测是否已经安装flash, 检测flash的版本 */
        var flashVersion = (function () {
            var version;
            try {
                version = navigator.plugins['Shockwave Flash'].description;
            } catch (ex) {
                try {
                    version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash').GetVariable('$version');
                } catch (ex2) {
                    version = '0.0';
                }
            }
            version = version.match(/\d+/g);
            return parseFloat(version[0] + '.' + version[1], 10);
        })();
        var supportTransition = (function () {
            var style = document.createElement('p').style;
            var isTransition = 'transition' in style || 'WebkitTransition' in style || 'MozTransition' in style || 'msTransition' in style || 'OTransition' in style;
            return (style = null), isTransition;
        })();

        if (!WebUploader.Uploader.support('flash') && WebUploader.browser.ie) {
            /*flash 安装了但是版本过低*/
            if (flashVersion) return (function (container) {
                window['expressinstallcallback'] = function (state) {
                    if (state === 'Download.Cancelled') alert('您取消了更新！');
                    else if (state === 'Download.Failed') alert('安装失败！');
                    else alert('安装已成功，请刷新！');
                    delete window['expressinstallcallback'];
                };
                var swf = '__ROOT__/static/plugs/uploader/expressInstall.swf';
                var html = '<object type="application/' + 'x-shockwave-flash" data="' + swf + '" ';
                if (WebUploader.browser.ie) html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                container.html(html + 'width="100%" height="100%" style="outline:0"><param name="movie" value="' + swf + '" /><param name="wmode" value="transparent" /><param name="allowscriptaccess" value="always" /></object>');
            })($wrap);
            return $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
        } else if (!WebUploader.Uploader.support()) return alert('Web Uploader 不支持您的浏览器！');
        // 文件上传前的检查
        WebUploader.Uploader.register({'before-send-file': 'preupload'}, {
            preupload: function (file) {
                var me = this, owner = this.owner, deferred = WebUploader.Deferred();
                owner.md5File(file.source).fail(function () {
                    deferred.reject();
                }).then(function (md5) {
                    file.md5 = md5;
                    var data = {id: file.id, md5: md5, uptype: '{$uptype}', filename: file.name, safe: '{$safe}' || 0};
                    $.ajax("{:url('@')}?s=admin/api.plugs/upstate", {
                        dataType: 'json', method: 'post', data: data, success: function (ret) {
                            if (parseInt(ret.code) === 1) {
                                owner.skipFile(file);
                                uploaded.call(uploader, ret.data, file);
                                percentages[file.id] = [file.size, 1];
                                updateTotalProgress();
                                console.log('文件秒传成功 --> ' + file.name);
                            } else {
                                file.md5 = md5;
                                file.token = ret.data.token || '';
                                file.key = ret.data.file_url || '';
                                file.site_url = ret.data.site_url || '';
                                me.options.server = ret.data.server;
                                me.options.formData.safe = ret.data.safe || '0';
                                me.options.formData.OSSAccessKeyId = ret.data.OSSAccessKeyId || ''; // OSS
                                me.options.formData.signature = ret.data.signature; // OSS
                                me.options.formData.policy = ret.data.policy; // OSS
                                me.options.formData.success_action_status = '200'; // OSS
                            }
                            deferred.resolve();
                        }
                    });
                });
                return deferred.promise();
            }
        });

        // 实例化
        uploader = WebUploader.create({
            pick: {
                id: '#filePicker',
                label: '点击选择文件',
                /*{if $mode === 'one'}*/
                multiple: false,
                /*{else}*/
                multiple: true,
                /*{/if}*/
            },
            accept: {title: '选择文件', extensions: '{$types}', mimeTypes: '{$mimes}'},
            formData: {},
            /*{if $mode === 'one'}*/
            auto: true,
            fileNumLimit: 1,
            /*{else}*/
            auto: false,
            fileNumLimit: 300,
            /*{/if}*/
            swf: '__ROOT__/static/plugs/uploader/Uploader.swf',
            chunked: false,
            dnd: '#dndArea',
            paste: document.body,
            chunkSize: 512 * 1024,
            disableGlobalDnd: true,
            fileSizeLimit: 200 * 1024 * 1024, // 200 M
            fileSingleSizeLimit: 200 * 1024 * 1024, // 200 M
            compress: {
                width: 1600,
                height: 16000,
                crop: false, // 是否允许裁剪
                quality: 90, // 图片质量(只有type为`image/jpeg`的时候才有效)
                allowMagnify: false, // 是否允许放大(如果想要生成小图的时候不失真，此选项应该设置为false).
                preserveHeaders: true, // 是否保留头部meta信息
                noCompressIfLarger: false, // 如果发现压缩后文件大小比原来还大，则使用原来图片
                compressSize: 1024 * 512, // 单位字节(如果图片大小小于此值，不会采用压缩)
            }
        });

        /* 上传开始前的处理 */
        uploader.on('uploadBeforeSend', function (file, data, header) {
            header['X_Requested_With'] = 'XMLHttpRequest';
            data['allowed_types'] = this.options.accept[0].extensions.split(',').join('|');
            data['md5'] = file.file.md5 || '';
            data['key'] = file.file.key || '';
            data['safe'] = file.file.safe || 0;
            data['token'] = file.file.token || '';
        });

        /* 处理上传后的结果 */
        uploader.on('uploadAccept', function (fieldata, ret) {
            // Qiniu or Local 上传
            if (parseInt(ret.code) === 1) return uploaded.call(uploader, ret.data, fieldata.file), true;
            // AliOSS 上传
            if (fieldata.file.site_url) return uploaded.call(uploader, {'site_url': fieldata.file.site_url}, fieldata.file), true;
            // 接收错误消息
            return fieldata.file.setStatus('error', ret.msg), false;
        });

        // 拖拽时不接受 js, txt 文件。
        uploader.on('dndAccept', function (items) {
            var denied = false, len = items.length, unAllowed = 'text/plain;application/javascript ';
            for (var i = 0; i < len; i++) if (~unAllowed.indexOf(items[i].type)) if (denied = true) break;
            return !denied;
        });

        // 添加“添加文件”的按钮，
        uploader.addButton({id: '#filePicker2', label: '继续添加'});
        uploader.on('ready', function () {
            window.uploader = uploader;
        });

        // 当有文件添加进来时执行，负责view的创建
        function addFile(file) {
            var $li = $('<li id="' + file.id + '"><p class="title">' + file.name + '</p><p class="imgWrap"></p><p class="progress"><span></span></p></li>'),
                $btns = $('<div class="file-panel"><span class="cancel">删除</span><span class="rotateRight">向右旋转</span><span class="rotateLeft">向左旋转</span></div>').appendTo($li),
                $prgress = $li.find('p.progress span'), $wrap = $li.find('p.imgWrap'), $info = $('<p class="error"></p>');
            var showError = function (code) {
                var text = '';
                if (code === 'exceed_size') text = '文件大小超出';
                else if (code === 'interrupt') text = '上传暂停';
                else if (code === 'http' || code === 'server' || code === 'abort') text = '上传失败，请重试';
                else text = code;
                $info.text(text).appendTo($li);
            };
            if (file.getStatus() === 'invalid') showError(file.statusText);
            else {
                $wrap.text('预览中');
                uploader.makeThumb(file, function (error, src) {
                    if (error) return $wrap.text('不能预览');
                    if (isSupportBase64) $wrap.empty().append($('<img src="' + src + '">'));
                    else $.ajax('{:url("@")}?s=plugs/file/preview', {method: 'post', data: src, dataType: 'json'}).done(function (response) {
                        if (response.result) $wrap.empty().append($('<img src="' + response.result + '">')); else $wrap.text("预览出错");
                    });
                }, thumbnailWidth, thumbnailHeight);
                percentages[file.id] = [file.size, 0];
                file.rotation = 0;
                $upload.html('开始上传');
            }
            // 文件上传状态变化
            file.on('statuschange', function (cur, prev) {
                if (prev === 'progress') $prgress.hide().width(0);
                else if (prev === 'queued') $li.off('mouseenter mouseleave'), $btns.remove();
                if (cur === 'error' || cur === 'invalid') showError(file.statusText), percentages[file.id][1] = 1;
                else if (cur === 'interrupt') showError('interrupt');
                else if (cur === 'queued') percentages[file.id][1] = 0;
                else if (cur === 'progress') $info.remove(), $prgress.css('display', 'block');
                else if (cur === 'complete') $li.append('<span class="success"></span>');
                $li.removeClass('state-' + prev).addClass('state-' + cur);
            });
            $li.on('mouseenter', function () {
                $btns.stop().animate({height: 30});
            }).on('mouseleave', function () {
                $btns.stop().animate({height: 0});
            });
            $btns.on('click', 'span', function () {
                var index = $(this).index();
                if (index === 0) return removeFile(file), uploader.removeFile(file);
                if (index === 1) file.rotation += 90;
                if (index === 2) file.rotation -= 90;
                if (supportTransition) {
                    var deg = 'rotate(' + file.rotation + 'deg)';
                    $wrap.css({'-webkit-transform': deg, '-mos-transform': deg, '-o-transform': deg, 'transform': deg});
                } else $wrap.css('filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
            });
            $li.appendTo($queue);
        }

        // 负责view的销毁
        function removeFile(file) {
            delete percentages[file.id];
            updateTotalProgress();
            $('#' + file.id).off().find('.file-panel').off().end().remove();
        }

        function updateTotalProgress() {
            var loaded = 0, total = 0, spans = $progress.children(), percent;
            $.each(percentages, function (k, v) {
                total += v[0], loaded += v[0] * v[1];
            });
            percent = total ? loaded / total : 0;
            spans.eq(0).text(Math.round(percent * 100) + '%');
            spans.eq(1).css('width', Math.round(percent * 100) + '%');
            updateStatus();
        }

        function updateStatus() {
            var text = '', stats = '';
            if (state === 'ready') text = '选中' + fileCount + '个文件，共' + WebUploader.formatSize(fileSize) + '。';
            else if (state === 'confirm') {
                stats = uploader.getStats();
                if (stats.uploadFailNum) text = '已成功上传' + stats.successNum + '个文件，' + stats.uploadFailNum + '个文件上传失败，<a class="retry" href="#">重新上传</a>失败文件'
            } else {
                stats = uploader.getStats();
                text = '共' + fileCount + '个（' + WebUploader.formatSize(fileSize) + '），已上传' + stats.successNum + '个';
                if (stats.uploadFailNum) text += '，失败' + stats.uploadFailNum + '个';
            }
            $info.html(text);
        }

        function setState(val) {
            if (val === state) return;
            $upload.removeClass('state-' + state);
            $upload.addClass('state-' + val);
            state = val;
            switch (state) {
                case 'pedding':
                    $placeHolder.removeClass('element-invisible');
                    $queue.hide(), $statusBar.addClass('element-invisible'), uploader.refresh();
                    break;
                case 'ready':
                    $placeHolder.addClass('element-invisible');
                    $('#filePicker2').removeClass('element-invisible');
                    $queue.show(), $statusBar.removeClass('element-invisible'), uploader.refresh();
                    break;
                case 'uploading':
                    $('#filePicker2').addClass('element-invisible');
                    $progress.show(), $upload.text('暂停上传');
                    break;
                case 'paused':
                    $progress.show(), $upload.text('继续上传');
                    break;
                case 'confirm':
                    $('#filePicker2').removeClass('element-invisible');
                    $progress.hide(), $upload.text('开始上传');
                    var stats = uploader.getStats();
                    if (stats.successNum && !stats.uploadFailNum) return setState('finish')
                    break;
                case 'finish':
                    if (uploader.getStats().successNum) completed.call(this);
                    else (state = 'done'), location.reload();
                    break;
            }
            updateStatus();
        }

        uploader.onUploadProgress = function (file, percentage) {
            var $li = $('#' + file.id), $percent = $li.find('.progress span');
            $percent.css('width', percentage * 100 + '%');
            percentages[file.id][1] = percentage;
            updateTotalProgress();
        };

        uploader.onFileQueued = function (file) {
            fileCount++, fileSize += file.size;
            if (fileCount === 1) $placeHolder.addClass('element-invisible'), $statusBar.show();
            addFile(file), setState('ready'), updateTotalProgress();
        };

        uploader.onfieldequeued = function (file) {
            fileCount--, fileSize -= file.size;
            if (!fileCount) setState('pedding');
            removeFile(file), updateTotalProgress();
        };

        uploader.on('all', function (type) {
            if (type === 'uploadFinished') return setState('confirm');
            if (type === 'startUpload') return setState('uploading');
            if (type === 'stopUpload') return setState('paused');
        });

        uploader.onError = function () {
            console.error(JSON.stringify(arguments));
        };

        $upload.on('click', function () {
            if ($(this).hasClass('disabled')) return false;
            if (state === 'ready') uploader.upload();
            else if (state === 'paused') uploader.upload();
            else if (state === 'uploading') uploader.stop();
        });

        $info.on('click', '.retry', function () {
            uploader.retry();
        });

        $upload.addClass('state-' + state);
        updateTotalProgress();
    });

</script>
</body>
</html>
